For the 'natural aspirators' - How tuned is your engine?
Discussion
Kozy said:
Was thinking about this this morning, seems to be enough interest actually!
Definitely. Start one 
. I'll do it if you don't want to. I usually enjoy reading about stuff like this in the Technical area. I notice 300bhp is here already, the other guys from there will probably be along soon. Get your hard hat ready!
nsa said:
Definitely. Start one . I'll do it if you don't want to. I usually enjoy reading about stuff like this in the Technical area. I notice 300bhp is here already, the other guys from there will probably be along soon. Get your hard hat ready!
If we were to do that, it'd be worthwhile putting all the details in, bore, stroke, cylinders, torque, power, PI etc. One for standard engines and another one for modified engines, which would include the before and after figures and costs involved.. I'll do it if you don't want to. I usually enjoy reading about stuff like this in the Technical area. I notice 300bhp is here already, the other guys from there will probably be along soon. Get your hard hat ready!I'll have a look at it later.
Kozy said:
Nice! What was it as stock, Mi-16 motor I'm guessing? Any idea how much that cost to build from stock?
It started as an Mi-16 but the light alloy block simply wasn't stiff enough, and we had all sorts of problems with e.g. core plugs and oil seals walking out and problems with the liners moving so the Mi16 head is now bolted an iron block (GTi6 I think). Enormous cams in it, so much lift that the cam cover had to be machined to clear the lobes! Forged crank, rods and pistons, dry sumped and running 8 injector TB setup. I don't know the exact numbers but initial cost around 10k and I suspect it's cost quite a lot more since then. It was running through an H pattern dog box to start with, and the "Gripper" LSD decided to escape into the bellhousing and took out the steel flywheel/multiplate clutch and geared starter, which was unfortunate. Now running a SADEV sequential box.Very competitive when it's running, but currently being rebuilt again due to a holed piston. A little less power and lots more reliability is on the cards I think.
In action at Smeatharpe
Edited by Mr2Mike on Monday 14th October 13:18
Kozy said:
Scuffers said:
no (only the speed of the HG failing is super-charged!)
Wow, pretty impressive indeed! But not quite as impressive as:motor mad said:
The Mugen tuned K20 that went in the limitied run Ariel Atom must be pretty good. 270bhp from 2 litres makes it a bit special.
941! 
nsa said:
Definitely. Start one . I'll do it if you don't want to. I usually enjoy reading about stuff like this in the Technical area. I notice 300bhp is here already, the other guys from there will probably be along soon. Get your hard hat ready!
OK, started one for factory engines, if everyone would like to add theirs!. I'll do it if you don't want to. I usually enjoy reading about stuff like this in the Technical area. I notice 300bhp is here already, the other guys from there will probably be along soon. Get your hard hat ready!http://www.pistonheads.com/gassing/topic.asp?h=0&a...
I'll start a modified one later.
Kozy said:
otolith said:
Yes - beats the R500 - but are these very highly tuned, low volume engines really "production"?
Valid question. I would say yes, insofar as you'd trust the figures (no pub dyno outputs) and (AFAIK), you'd get a warranty with them?all these 'specialist' LV cars have questionable power claims backed up by nothing particular
ts down the pub who's 2 litre Astra puts out 340bhp...
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